Three-piece desk set



FIG. 1 is a front elevational view of a three piece desk set showing my new design;

FIG. 2 is a left side elevational view thereof, the other side being substantially a mirror image thereto;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof, and

FIG. 6 is an exploded view of the three individual pieces of the desk set. 

The ornamental design for a three-piece desk set, as shown and described. 